[kde] [Bug 442491] New: Screen can't sleep, it is always up with my computer

[Zacharie Troletti-Gillot]

https://bugs.kde.org/show_bug.cgi?id=442491

            Bug ID: 442491
           Summary: Screen can't sleep, it is always up with my computer
           Product: kde
           Version: unspecified
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: zach.troletti at hotmail.fr
  Target Milestone: ---

Created attachment 141574
  --> https://bugs.kde.org/attachment.cgi?id=141574&action=edit
System lock settings

Hello, 
I have assembled a new computer with AMD R7 1700 and RX 460 4 GB GPU. I have
installed Debian Bullseye 11 and KDE Plasma 5.20.5 on it. 

I have installed AMD non-free drivers, but I have always a problem: I have set
up KDE to lock my session and sleep my screen, but the screen is off only one
second and going up immediately on my lock screen. 
However if I suspend the system with "systemctl suspend" command I don't have
this problem. 


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Debian 11 Bullseye
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Linux Kernel 5.10.8-amd64

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